Hello All! I have 36 eggs in the Bator right now. 6 Rouen duck eggs, 18 OE's, and 12 barnyard mix. My duck eggs are on day 6 and I just set my chicken eggs today. I've been running my humidity for the duck eggs at 75%+ but know from experience, my chicken eggs don't seem to hatch out as well with that high of humidity.
My last chicken hatch I stayed pretty consistent at 40% humidity until lockdown and had an 85% hatch rate.
What are your suggestions for humidity?
75% is high for ducks, let alone chickens. I had my first batch of ducks at 60% and had I not checked air cells a week before lockdown, they would've drowned because hey hadn't lost enough water. 40% will be fine for ducks as well. I'd just monitor air cells and stop adding water as opposed to removing water so the humidity drops naturally :)